To make any changes to the build system (if you're compiling this with autotools and such), the files you will need to edit are:
Depending on which files you edit, you'll need to need to run these commands before
the usual configure; make; make install
:
autoreconf # for aclocal.m4
autoconf # for generating the configure script
./MakeAM.sh # for generating the Makefile.am
automake [--add-missing|-a] # for generating the Makefile.in, if it fails, use
# the --add-missing or -a flag to add the files that're missing